*{
	margin: 0;
	padding: 0;
}
#div1{
	width: 300px;
	height: 300px;
	border: 1px solid red;
	margin: 100px auto;
}
input{
	width: 95px;
	height: 30px;
	text-align: center;
	line-height: 30px;
	font-size: 30px;
}
ul{
	list-style: none;
	
}
li{
	width: 300px;
	height: 270px;
	background: cornflowerblue;
	display: none;
}
.active{
	background: salmon;
	color: aqua;
}
.show{
	display: block;
}
